99098909 has 16 divisors (see below), whose sum is σ = 125905920. Its totient is φ = 75876480.

The previous prime is 99098897. The next prime is 99098911. The reversal of 99098909 is 90989099.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 99098909 - 2⁸ = 99098653 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99098939) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14744 + ... + 20385.

It is an arithmetic number, because the mean of its divisors is an integer number (7869120).

Almost surely, 2^99098909 is an apocalyptic number.

It is an amenable number.

99098909 is a deficient number, since it is larger than the sum of its proper divisors (26807011).

99098909 is a wasteful number, since it uses less digits than its factorization.

99098909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35180.

The product of its (nonzero) digits is 472392, while the sum is 53.

The square root of 99098909 is about 9954.8434945006. The cubic root of 99098909 is about 462.7605100660.

It can be divided in two parts, 990 and 98909, that added together give a palindrome (99899).

The spelling of 99098909 in words is "ninety-nine million, ninety-eight thousand, nine hundred nine".